Immediate and delayed reinforcement on WISC-R performance for mentally retarded students

Area of Science:

• Psychology
• Educational Psychology
• Developmental Psychology

Background:

• Intellectual disability can impact cognitive assessment performance.
• Standardized intelligence testing may not fully capture the potential of individuals with intellectual disabilities.
• Reinforcement strategies are explored to potentially mitigate testing limitations.

Purpose of the Study:

• To investigate the impact of immediate and delayed reinforcement on WISC-R performance in children with intellectual disabilities.
• To compare the effectiveness of different reinforcement schedules in improving test scores.
• To examine the implications of reinforcement on the classification of intellectual functioning.

Main Methods:

• Thirty white children diagnosed with intellectual disabilities participated.
• Participants were administered the WISC-R under three conditions: standardized, standardized with immediate reinforcement, and standardized with delayed reinforcement.
• Reinforcement involved earning and exchanging tokens for backup reinforcers.

Main Results:

• Both immediate and delayed reinforcement groups demonstrated significantly higher WISC-R scores than the standardized testing group.
• No significant difference in performance was found between the immediate and delayed reinforcement groups.
• A higher proportion of children in reinforcement groups scored above the mentally impaired range compared to the standardized group.

Conclusions:

• Reinforcement strategies can enhance the performance of children with intellectual disabilities on intelligence tests.
• The timing of reinforcement (immediate vs. delayed) did not differentially affect outcomes.
• Findings suggest that reinforcement may offer a more accurate assessment of cognitive potential in this population.